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National Stock Number:
5305-01-483-2838
Federal Supply Class:
5305
National Item Identification Number:
014832838
Description:
SCREW,CAP,HEXAGON HEAD
Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| 0.438-14UNRC-3AX1.500LG | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | 801-6408785 FIND 26 | 53711 | NAVAL SEA SYSTEMS COMMAND | | DF-330645 FIND 26 | 43689 | HUNTINGTON INGALLS INC |
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Techincal Specification:
| FASTENER LENGTH | 1.500 INCHES NOMINAL | | HEAD HEIGHT | 0.430 INCHES MINIMUM AND 0.438 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.438 INCHES | | SPECIAL FEATURES | SELF LOCKING | | WIDTH BETWEEN FLATS | 0.642 INCHES MINIMUM AND 0.656 INCHES MAXIMUM | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.500 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNRC | | THREAD QUANTITY PER INCH | 14 |
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